OSG Thread Forming Tap: #4-40 UNC, H3 / 2B-3B, Bottoming Chamfer
SKU 3G-OTH-236477
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Frequently Asked Questions
What is an OSG thread forming tap used for?
An OSG thread forming tap creates internal threads in ductile materials like aluminum, brass, and low-carbon steel without cutting chips. It displaces material to form threads, producing stronger, burr-free threads ideal for automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG #4-40 UNC thread forming tap?
This OSG tap is #4-40 UNC size with H3 / 2B-3B tolerance, bottoming chamfer, and cobalt construction. The H3 pitch diameter limit ensures precise thread fit for 2B-3B classes. It is designed for through or blind holes in ductile materials.
Where to buy OSG thread forming taps worldwide?
3G Electric supplies OSG thread forming taps worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine OSG taps like the #4-40 UNC cobalt model (MPN 1400104900) to customers across 14 industrial departments.
How to select the right OSG thread forming tap for your application?
Select an OSG thread forming tap based on material ductility, thread size, and hole type. For #4-40 UNC in blind holes, use a bottoming chamfer. Cobalt construction suits harder materials. Confirm H3 tolerance matches your required 2B-3B thread class for proper fit.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose thread-forming taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
